Apparatus and method for implementing a linearly approximated log map algorithm

A method and apparatus for implementing a linearly approximated Log MAP algorithm, said implementation involves calculating MAX*(a(n),b(n)) function, said method comprising the steps of: (A) Receiving a(n), b(n) and DE; (B) calculating (a(n)+b(n)+DE)/2 and generating at least one intermediate result...

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Bibliographic Details
Main Authors AIDAN FABRICE, LESHIN GREGORY, SIVAN NOAM
Format Patent
LanguageEnglish
Published 14.02.2002
Edition7
Subjects
BASIC ELECTRONIC CIRCUITRY
CODE CONVERSION IN GENERAL
CODING
DECODING
ELECTRICITY
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Summary:A method and apparatus for implementing a linearly approximated Log MAP algorithm, said implementation involves calculating MAX*(a(n),b(n)) function, said method comprising the steps of: (A) Receiving a(n), b(n) and DE; (B) calculating (a(n)+b(n)+DE)/2 and generating at least one intermediate result, said at least one intermediate result reflecting at least one relationship between at least two elements out of a(n), b(n) and DE; and (C) providing an MAX*(a(n),b(n)) result selected from a group comprising of a(n), b(n) or (a(n)+b(n)+DE)/2, said selection dependent upon the at least one intermediate result.
Bibliography:Application Number: US20010923007